Tui De Roy / Volcan Alcedo Giant Tortoise (Chelonoidis nigra vandenburghi) group wallowing in mud at night, Alcedo Volcano, Isabela Island, Galapagos Islands, Ecuador

Tui De Roy / Volcan Alcedo Giant Tortoise (Chelonoidis nigra vandenburghi) group wallowing in mud at night, Alcedo Volcano, Isabela Island, Galapagos Islands, Ecuador

Luciano Candisani / Jacare Caiman (Caiman yacare) group in wetland at night, Pantanal, Brazil

Tim Fitzharris / Startrails over Shiprock in four corners region, New Mexico

Jim Brandenburg / Giant Sequoia (Sequoiadendron giganteum) and star trails in King's Canyon National Park, California

Tui De Roy / Tungurahua Volcano erupting, near Banos, Andes Mountains, Ecuador

Tui De Roy / Volcan Alcedo Giant Tortoise (Chelonoidis nigra vandenburghi) trio wallowing at night, Alcedo Volcano, Isabela Island, Galapagos Islands, Ecuador

Konrad Wothe / Star tracks at night, Sinai, Egypt

Vincent Grafhorst / Baobab (Adansonia sp) tree and star trails, Kubu Island, Makgadikgadi Pan, Botswana, Botswana

Vincent Grafhorst / Quiver Tree (Aloe dichotoma) and star trails, Keetmanshoop, Namibia

Vincent Grafhorst / Quiver Tree (Aloe dichotoma) group and star trails, Keetmanshoop, Namibia, stacked image*

Theo Allofs / Star trails above red sand dune at night, Dorob National Park, Namib Desert, Namibia